[RssReader] XMLPullParser 이용하기.

<?xml version="1.0" encoding="utf-8"?>   <!--Androidmanifest.xml-->   <manifest  xmlns:android="http://schemas.android.com/apk/res/android"  package="lee.android.SimpleRSSReader"  android:versionCode="1"  android:versionName="1.0" >  <application   android:icon="@drawable/icon"   android:label="@string/app_name"  >   <activity    android:name=".SimpleRSSReaderActivity"    android:label="@string/app_name"   >    <intent-filter>     <action      android:name="android.intent.action.MAIN" />     <category      android:name="android.intent.category.LAUNCHER" />    </intent-filter>   </activity>   <activity    android:name=".ItemDetailActivity"   ></activity>  </application>  <uses-sdk   android:minSdkVersion="8" />  <uses-permission   android:name="android.permission.INTERNET"  ></uses-permission> </manifest>

<?xml version="1.0" encoding="utf-8"?>    <!--main.xml-->   <LinearLayout  xmlns:android="http://schemas.android.com/apk/res/android"  android:orientation="vertical"  android:layout_width="fill_parent"  android:layout_height="fill_parent" >  <ListView   android:id="@android:id/list"   android:layout_width="wrap_content"   android:layout_height="wrap_content" />  <TextView   android:id="@android:id/empty"   android:layout_width="wrap_content"   android:layout_height="wrap_content" /> </LinearLayout>

<?xml version="1.0" encoding="utf-8"?>   <!--row.xml-->   <LinearLayout  xmlns:android="http://schemas.android.com/apk/res/android"  android:id="@+id/item_container"  android:orientation="vertical"  android:layout_width="fill_parent"  android:layout_height="wrap_content" >  <TextView   android:id="@+id/item_title"   android:layout_width="fill_parent"   android:layout_height="wrap_content"   android:textSize="18sp"   android:lines="1" />  <TextView   android:id="@+id/item_descr"   android:layout_width="fill_parent"   android:layout_height="wrap_content"   android:lines="2"   android:ellipsize="end"   /> </LinearLayout>

<?xml version="1.0" encoding="utf-8"?>   <!--item_detail.xml-->   <LinearLayout  xmlns:android="http://schemas.android.com/apk/res/android"  android:orientation="vertical"  android:layout_width="fill_parent"  android:layout_height="wrap_content" >  <TextView   android:id="@+id/item_detail_title"   android:layout_width="fill_parent"   android:layout_height="wrap_content"   android:textAppearance="?android:attr/textAppearanceLarge"   android:background="@android:drawable/dark_header"   />  <TextView   android:id="@+id/item_detail_descr"   android:layout_width="fill_parent"   android:layout_height="wrap_content"/> </LinearLayout>

//SimpleRSSReaderActivity.java   package lee.android.SimpleRSSReader; import java.util.ArrayList; import android.app.ListActivity; import android.content.Intent; import android.os.Bundle; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.view.Window; import android.widget.ListView; public class SimpleRSSReaderActivity extends ListActivity {  public static final String RSS_FEED_URL = "http://itpro.nikkeibp.co.jp/rss/ITpro.rdf";  private ArrayList<Item> mItems;  private RssListAdapter mAdapter;  public static final int MENU_ITEM_RELOAD = Menu.FIRST;    @Override  public void onCreate(Bundle savedInstanceState) {   super.onCreate(savedInstanceState);   requestWindowFeature(Window.FEATURE_NO_TITLE);   setContentView(R.layout.main);   // Create a List of Item objects for preservation and add an adapter.   mItems = new ArrayList<Item>();   mAdapter = new RssListAdapter(this, mItems);   // Task Operation   RssParserTask task = new RssParserTask(this, mAdapter);   task.execute(RSS_FEED_URL); // RSS_FEED_URL은 doInBackground Method 의 Parameter 로 넘겨진다.  }  @Override  protected void onListItemClick(ListView l, View v, int position, long id) {   Item item = mItems.get(position);   Intent intent = new Intent(this, ItemDetailActivity.class);   intent.putExtra("TITLE", item.getTitle());   intent.putExtra("DESCRIPTION", item.getDescription());   startActivity(intent);  }    // Refresh Button add  @Override  public boolean onCreateOptionsMenu(Menu menu) {   boolean result = super.onCreateOptionsMenu(menu);   menu.add(0, MENU_ITEM_RELOAD,0,"Refresh");   return result;  }    @Override  public boolean onOptionsItemSelected(MenuItem item) {   switch(item.getItemId()) {   case MENU_ITEM_RELOAD:    mItems = new ArrayList();    mAdapter = new RssListAdapter(this,mItems);    RssParserTask task = new RssParserTask(this, mAdapter);    task.execute(RSS_FEED_URL);    return true;   }   return super.onOptionsItemSelected(item);  } }

// RssListAdapter.java   package lee.android.SimpleRSSReader; import java.util.List; import android.content.Context; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.TextView; import android.widget.ArrayAdapter; public class RssListAdapter extends ArrayAdapter<Item> {  private LayoutInflater mInflater;  private TextView mTitle;  private TextView mDescr;  public RssListAdapter(Context context, List<Item> objects) {   super(context, 0, objects);   mInflater = (LayoutInflater) context     .getSystemService(Context.LAYOUT_INFLATER_SERVICE);  }  // Create a view for each row  public View getView(int position, View convertView, ViewGroup parent) {   View view = convertView;   if (convertView == null) {    view = mInflater.inflate(R.layout.row, null);   }   Item item = this.getItem(position);   if (item != null) {    String title = item.getTitle().toString();    mTitle = (TextView) view.findViewById(R.id.item_title);    mTitle.setText(title);    String descr = item.getDescription().toString();    mDescr = (TextView) view.findViewById(R.id.item_descr);    mDescr.setText(descr);   }   return view;  } }

// ItemDetailActivity.java   package lee.android.SimpleRSSReader; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.widget.TextView; public class ItemDetailActivity extends Activity {  private TextView mTitle;  private TextView mDescr;    @Override  public void onCreate(Bundle savedInstanceState) {   super.onCreate(savedInstanceState);   setContentView(R.layout.item_detail);      Intent intent = getIntent();      String title = intent.getStringExtra("TITLE");   mTitle = (TextView)findViewById(R.id.item_detail_title);   mTitle.setText(title);   String descr = intent.getStringExtra("DESCRIPTION");   mDescr = (TextView)findViewById(R.id.item_detail_descr);   mDescr.setText(descr);  } }

// Item.java   package lee.android.SimpleRSSReader; public class Item {  private CharSequence mTitle; // Article Title  private CharSequence mDescription; // Acticle Body  public Item() {   mTitle="";   mDescription="";  }    public CharSequence getDescription() {   return mDescription;  }    public void setDescription(CharSequence description) {   mDescription = description;  }  public CharSequence getTitle() {   return mTitle;  }  public void setTitle(CharSequence title) {   mTitle = title;  } }

// RssParserTask.java   package lee.android.SimpleRSSReader; import java.io.IOException; import java.io.InputStream; import java.net.URL; import org.xmlpull.v1.XmlPullParser; import org.xmlpull.v1.XmlPullParserException; import android.app.ProgressDialog; import android.os.AsyncTask; import android.util.Log; import android.util.Xml; public class RssParserTask extends AsyncTask<String, Integer, RssListAdapter> {  private SimpleRSSReaderActivity mActivity;  private RssListAdapter mAdapter;  private ProgressDialog mProgressDialog;  public RssParserTask(SimpleRSSReaderActivity activity,    RssListAdapter adapter) {   mActivity = activity;   mAdapter = adapter;  }  // Task 를 실행한 직후 제일 먼저 onPreExecute()가 호출된다.  @Override  protected void onPreExecute() {   mProgressDialog = new ProgressDialog(mActivity);   mProgressDialog.setMessage("Now Loading...");   mProgressDialog.show();  }  // Background 에서의 처리는 doInBackGround Method 가 담당한다.  @Override  protected RssListAdapter doInBackground(String... arg0) {   RssListAdapter result = null;   try {    // HTTP경유로 접속하고, InputStream을 취득    URL url = new URL(arg0[0]);    InputStream is = url.openConnection().getInputStream();    result = parseXml(is);   } catch (Exception e) {    e.printStackTrace();   }   // 여기에서 넘겨주는 값은 onPostExecute Method 의 Parameter 로 넘겨진다.   return result;  }  protected void onPostExecute(RssListAdapter result) {   mProgressDialog.dismiss();   mActivity.setListAdapter(result);  }  // XML Analysis  public RssListAdapter parseXml(InputStream is) throws IOException,    XmlPullParserException {   XmlPullParser parser = Xml.newPullParser();   /*    * <item rdf:about="http://itpro.nikkeibp.co.jp/article/NEWS/20101108/353908/">     * <title>「婚活??」のAndroidアプリ、インデックスHDがFeliCa搭載端末向けに無料提供（ニュ?ス）</title>    * <link>http://itpro.nikkeibp.co.jp/article/NEWS/20101108/353908/</link>    * <description>　インデックス?ホ?ルディングスは2010年11月8日、FeliCa搭載端末同士をタッチすることで相性診?やメ?ルアドレスの送信などが手    * ?に行えるAndroidアプリ「Touch Friends」を?表した。NTTドコモが同日?表した「LYNX 3D    * SH-03C」などのFeliCa搭載端末で動作する。</description>    * <dc:date>2010-11-08T16:58:00+09:00</dc:date> </item>    */   try {    parser.setInput(is, null);    int eventType = parser.getEventType();    Item currentItem = null;    while (eventType != XmlPullParser.END_DOCUMENT) {     String tag = null;     switch (eventType) {     case XmlPullParser.START_TAG: // "<>를 만났을 때      tag = parser.getName();      if (tag.equals("item")) {       currentItem = new Item();      } else if (currentItem != null) {       if (tag.equals("title")) {        currentItem.setTitle(parser.nextText());       } else if (tag.equals("description")) {        currentItem.setDescription(parser.nextText());       }      }      break;     case XmlPullParser.END_TAG: // "</>"를 만났을 때      tag = parser.getName();      if(tag.equals("item")) {       mAdapter.add(currentItem);      }      break;     }     eventType = parser.next();    }   } catch (Exception e) {    e.printStackTrace();   }   return mAdapter;  } }

 

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